Regice @ Shell Bell  
Ability: Clear Body  
EVs: 248 HP / 8 Atk / 252 SpA  
Quiet Nature  
- Ice Beam  
- Thunderbolt  
- Thunder Wave  
- Explosion  

Metagross @ Choice Band  
Ability: Clear Body  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Meteor Mash  
- Earthquake  
- Explosion  
- Hidden Power [Rock]  

Gengar @ Silk Scarf  
Ability: Levitate  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Explosion  
- Thunder  
- Ice Punch  
- Rain Dance  

Ludicolo @ Petaya Berry  
Ability: Swift Swim  
EVs: 4 Atk / 252 SpA / 252 Spe  
Mild Nature  
- Fake Out  
- Hydro Pump  
- Ice Beam  
- Rain Dance  

Hariyama @ Leftovers  
Ability: Thick Fat  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Fake Out  
- Rock Slide  
- Brick Break  
- Earthquake  

Latios (M) @ Dragon Fang  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Dragon Claw  
- Luster Purge  
- Rain Dance  
- Protect